Floor Cleaning Apparatus and Liquid Delivery Assembly for Use in Floor Cleaning Apparatus

A floor cleaning apparatus comprising a cleaning head portion for engaging a floor surface during cleaning, an upstanding portion for maneuvering movement of the cleaning head portion, a liquid delivery assembly, a handle portion extending from said upstanding portion and a sealed liquid storage container, wherein the cleaning head portion includes at least a first nozzle for discharging of cleaning detergent therefrom, wherein:

• the liquid delivery assembly defines at least a first passageway,
• the liquid delivery assembly includes a first chamber, the first passageway allowing fluid communication between the sealed liquid storage container and said first chamber,
• a second chamber situated adjacent said first chamber,
• the liquid delivery assembly includes a first conduit allowing liquid to exit from the second chamber to the first nozzle for discharge, and
• at least the second chamber includes a damper for storing pressure when liquid is being pumped from the second chamber to the first nozzle and releasing pressure when liquid is not being pumped from the second chamber to said first nozzle.